Plowshare



J. A. PORTER.

PLOWSHARE.

APPLICATION FILED nov.1, 1919.

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J. A. PORTER.

PLOWSHARE.

APPLICATION FlLED NOV. 1, 1919.

. 1,362,137. Patented Dec.14,1920

2 SHEETSSHEET 2- Inf/6555" wzw JACK A. PORTER, OF HOATH, SASKATCHEWAN,CANADA.

PLOWSHARE.

Application filed November 1, 1919.

To all whom it may concern Be it known that I, JACK A. PORTER, a subjectof the King of Great Britain, residing at Hoath, in the Province ofSaskatchewan and Dominion of Canada, have invented certain new anduseful Improve ments in Plowshares, of which the following is aspecification.

This invention relates to the object thereof is to provide a quicklydetachable share, in which there are no small bolts to handle in thechanging of the shares.

Another object is to provide means for tightening or loosening a shareso located as to be readily accessible.

with the foregoing and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed may be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawings:

Figure 1 represents a side elevation of a mold board and plowshareembodying this invention, said parts being separated and arranged injuxtaposition, parts being broken out and in section.

Fig. 2 is a similar view taken from the other side of the plow with theparts shown plowshares, and

assembled and partly in section.

Fig. 3 is a horizontal section taken on the line 33 of Fig. 2.

Fig. 4 is a vertical transverse section with the share shown injuxtaposition ready for assembling in full lines and in assembledposition in dotted lines; and

ig. 5 is a vertical transverse section taken on the line 55 of Fig. 2.

In the embodiment illustrated, a mold board 1 of ordinary constructionis shown, and the share 2 for connection therewith is shown in Fig. 1separatedready for assembling and assembled in Fig. 2. This share 2 isequipped on its inner face with longitudinally spaced hook-like lugs 3,positioned at an oblique'angle, being inclined downwardly as is shownclearly in Fig. 4, and which form attaching elements connected as willbe hereinafter more fully described.

Bolted to the board 1 adjacent inner face of the mold its lower edge andpro- Specification of Letters Patent.

Patented Dec. 14, 1920. Serial No. 334,933.

jecting beyond said edge is a frog 4:, bein preferably in the form of acasting and provided on its inner face near its upper edge with guidesshown in the form of apertured lugs 4 and which are designed for thepassage therethrough of connecting bolts 7 which will be hereinaftermore fully de scribed; Depending from the lower edge of the frog a inalinement with the lugs 4 are slotted ears 5, the slots 5 openingthrough the lower ends of said ears and being designed for the passageof the hook like elements 3 carried by the share 2 when the share is tobe assembled.

The bolts 7, two of which are shown, are

of a length sufficient to extend transversely across the inner face ofthe mold board, being threaded at their upper ends and provided at theirlower ends with flattened heads 7 These heads 7 have slots 6, the upperand lower walls of which are beveled as shown at 6 in Fig. 4:, andthrough which are deslgned to pass the hooks 3 carried by t e share.

Sleeves 8 are mounted on the bolts 7 above the frog 4 and are designedto rest on the upper ends of the apertured lugs 4, Wing nuts 9 beingscrewed on the threaded upper ends of said bolts 7 above the sleevesagainst which said nuts bear. It will thus be obvious that when thesenuts 9 are screwed inward on the bolts 7 they will operate to move thebolts longitudinally upward, exerting a pulling tension or draw on thehooks 3, which have first been placed in the slots 6 of the bolt heads 7This tightening of the nuts, and upward movement of the bolts, securelylocks the share to the mold board.

A brace rod 10 such as is ordinarily used, is arranged diagonally acrossthe inner face of the mold board, being riveted at one end to the rearcorner of the board, and bolted at its other end to the front end of thefrog 4:, said end being arranged in a plane at right angles to the bodyportion of the frog, the rod 10 having a foot 10 through which passesthe bolt 13 which connects it to the A lug 12 is carried by the innerface of the front end of the share 2, and is designed to enter anaperture 11 formed in the front end of the frog, as is shown clearly inFigs. 2 and 3, and operates to assist in securing the share to the moldboard.

In the use of this invention, when it is deto be moved downwardly intothe sired to remove the shares 2 for any reason, all that is necessaryis to loosen the nuts 9 which will loosen the rods 7 to permit themposition shown in Fig. 1 so that the hooks 3 of the share may be readilydisengaged, and the share lifted off the mold board. 7

To apply a share 2, hooks 8 and lug 12 are engaged with the slots in thefrog 4 and said hooks passed through the slots 6 in the bolt heads 7 Thenuts 9 are then tightened to draw up on the bolts 7 and lock the share 2securely to the mold board. It will thus be seen that no small bolts areemployed for connecting the share to the mold board, the two large handbolts 7 being the only bolts used.

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and of themethod of operation will be readily apparent to those skilled in the artto which the invention appertains and while I have described theprinciple of, operation of the invention together with the device whichI now consider to be the best embodiment thereof, I desire to have itunderstood that the device shown is merely illustrative and that suchchanges may be made as are within the scope of the claimed invention.

Having thus fully described my invention, What I claim as new and desireto secure by Letters Patent, is:

'1. The combination of a mold board, afrog carried thereby and havingguides on its inner face and slots alined with said cable through saidguides guides, bolts movable through said guides and having slotstherein, a share having hooks for insertion through the slots in saidfrogs and bolts, and means carried by the bolts for locking the share inoperative position. V

2. The combination of a mold board, a frog carried therebyand havinglaterally offset guides on its inner face, and slots transversely alinedwith said guides, bolts movand having slots therein with beveled upperand lower walls, a share having hooks for insertion through the slots insaid frogs and bolts, and means carried by the bolts for locking theshare in operative position.

3. The combination .of a mold board, a frog carried thereby havinglaterally offset guides, slotted ears depending from the lower edge ofsaid frog and alining with said guides, bolts movable through saidguides and having flattened longitudinally slotted heads, sleevesmounted on said bolts above said guides, wing nuts carried by said boltsin advance of said sleeves, and a share having hook-shaped lugs on itsinner'face positioned to enter the slots in said ears and said boltheads whereby the tightening of said nuts will operate to lock the shareto the mold board. i

. In testimony whereof I afiix my signature in presence of twowitnesses.

JACK A. PORTER.

Witnesses: 7 a

BERTHA LAPOINTE,

MADELEINHLAPOINTE,

